What makes for a thriving nation and happy citizens? Values. A nation's institutions need people with supporting underlying values to perform at their best.

Blazing remnants of the off shore oil rig Deepwater Horizon, off Louisiana, in 2010. The losses produced by polluting companies should cost as ‘negative’ for a country’s growth.
Reuters/US Coast Guard/Files9 octobre 2017

Kate Johnson, University of Southern California et Joe Hoover, University of Southern California – Dornsife College of Letters, Arts and Sciences

While research has long suggested that we like others who are like us, a new study offers insight into how we choose to support those who share our views of 'moral purity.' It may explain how we voted.